| 摘要 |
PURPOSE:To provide a technology improving the shape of the metal fitting clamping flange part of a tire vulcanizing bladder and shortening the vulcanizing time of the tire vulcanizing bladder. CONSTITUTION:In a freely expansible tire vulcanizing bladder 21 having a pair of opening parts formed into a hollow cylindrical shape from an elastic material such as rubber provided to both ends thereof in its axial direction and receiving a pressure fluid at the time of the vulcanization of a tire to support the tire from the inside thereof, the metal fitting clamping flange parts 20 provided to both end parts forming the opening parts of the tire vulcanizing bladder have a polygonal cross-sectional shape and a dent 26 is formed to at least one side among the respective sides of the polygonal shape. |
